Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 140,635 pages of information and 227,383 images on early companies, their products and the people who designed and built them.
of Trafford Park, Manchester.
Conducted switchgear-testing programme for the constituent firms (presumably part of AEI).
1934 A sixteen-element electromagnetic oscillograph was made for the company by Metropolitan-Vickers.
1934 The 3 switchgear manufacturing companies in the AEI group - BTH, Ferguson Pailin and Metropolitan-Vickers Electrical Co were jointly erecting a high power testing plant to handle rupture tests on the largest types of switches